APW1173
Electrical Characteristics (Cont.)
The * denotes the specifications that apply over T
A
= -40 ~ 85
o
C. Typical values are at T
A
= 25
o
C.
V
CC
= 12V unless otherwise specified.
APW1173
Min
Dynamic Characteristics
V
FB
η
I
qop
I
q
Voltage feedback
APW1173
Efficiency
4.8V < V
CC
< 22V, 20mA < I
O
<2A
V
O
= 5V, V
CC
= 12V, I
OUT
= 1A
1.22
1.235
1.25
V
%
Typ
Max
Symbol
Parameter
Test condition
Unit
* 1.198 1.235 1.272
82
DC Characteristics
Total Operating Quiescent Current
Quiescent Current
Duty Cycle = 0; V
FB
= 1.5V
V
INH
> 2.2V
V
CC
= 22V; V
INH
> 2.2V
*
*
50
80
*
12
10
100
150
mA
mA
µ
A
µ
A
I
qst-by
Total Stand-by Quiescent Current
Inhibit
V
INH
INH Threshold Voltage
INH Pull-Up Current
Maximum INH Voltage
Error Amplifier
V
OH
V
OL
High Level Output Voltage
Low Level Output Voltage
Device ON
Device OFF
V
INH
< 3V
I
INH
= 0A
1.1
1.2
1.3
1.4
1
4.3
1.5
1.6
V
V
µA
V
V
FB
= 1V
V
FB
= 1.5V
V
COMP
= 1.9V; V
FB
= 1V
V
COMP
= 1.9V; V
FB
= 1.5V
V
FB
= 1.5V
I
FB
= 0µA
V
FB
= 1.255V to 1.215V, I
COMP
=
-0.1mA to 0.1mA V
COMP
= 1.9V
V
CC
= 4.8 to 22V
VCC = 4.8V to 22V
V
SYNC
= 0.74V
V
SYNC
= 2.33V
I
SOURCE
= 3mA
No load, V
SYNC
=1.65V
4
3.5
3.8
0.4
V
V
µ
A
mA
4
µA
V
mA/V
I
O source
Source Output Current
I
O sink
Sink Output Current
I
FB
Source Bias Current
Maximum FB Voltage
gm
Trans-conductance
200
1
300
1.5
2.5
2.1
2.3
SYNC Function
High Input Voltage
Low Input Voltage
Slave Sink Current
Master Output Amplitude
Output Pulse Width
Copyright
©
ANPEC Electronics Corp.
Rev. A.5 - Aug., 2005
2.5
V
REF
0.74
V
V
mA
V
µ
s
0.11
0.21
2.75
0.2
3
0.35
0.25
0.45
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ANPEC [ ANPEC ELECTRONICS COROPRATION ]
